128730304 has 56 divisors (see below), whose sum is σ = 270570960. Its totient is φ = 60662784.

The previous prime is 128730253. The next prime is 128730311. The reversal of 128730304 is 403037821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79002 + ... + 80614.

Almost surely, 2^128730304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128730304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135285480).

128730304 is an abundant number, since it is smaller than the sum of its proper divisors (141840656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128730304 is a wasteful number, since it uses less digits than its factorization.

128730304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 128730304 is about 11345.9377752568. The cubic root of 128730304 is about 504.9250668153.

The spelling of 128730304 in words is "one hundred twenty-eight million, seven hundred thirty thousand, three hundred four".